My 6.5 creedmoor (Begara HMR) likes the 143 eldxs a little better than the 140 bergers. During load development I tried both bullets with H4350 and H4831sc. Finally settled on 42.1 g of H4350 and the eldx, oal 2.825. I believe that the eldx is a better hunting bullet and has slightly a better BC (.623 vs .606).I have 143 eldx and I have 140 berger elite hunters, I want to start load development but before I get set on one or the other which is best for whitetail 400 yards or less? Both are hard to find but once I find a load I want 1,000 plus bullets